Discrepancies between GIA cert & Sarin report. Please help.

[Dead Tired]

I recently posted specs on a diamond I am looking at, (please see: "Which way do I go? Specs on two stones"), and I was encouraged to seek an additional "Sarin" report. I received this report from the seller and the numbers don't exactly match those in the GIA cert. Both lists of stats can be found in my earlier posting mentioned above, but I just want to know if this seller is being honest with me when she tells me that such discrepancies are normal and that both reports are indeed for the same stone.
Thanks,
Dead Tired

 

[Garry H (Cut Nut)]

Give me the data. no time for searching

Small %'s of up to 1% for table are not uncommon - and do not have much impact - it is the pavilion angle that is most important - and it rarely varies by more than .2 degrees.

 

[Dead Tired]

Here's the scoop:

Gia Cert--

Square Modified, Brilliant
6.52 x 5.43 x 4.81 mm
1.65 Carat
74.8% Depth
71% Table
Girdle Thick
Culet None
Polish Very Good
Symmetry Good
VS2
H
Flourescence None

Sarin Report--

Princess Report
1.662 Carat
6.49 x 6.39 L/W: 1.015
Total Depth 75.2% 4.81mm
Crown Angle 42.8' (41.9 - 43.7)
Crown Height 11.1% (10.5 - 11.7)
Pavil Angle 57.1' (57.4 - 56.7)
Pavil Depth 59.8% (59.5 - 60.0)
Table Size 71.9% (71.9 - 72.6)
Girdle thickness 4.4% (4.0 - 4.7)

Thanks Very Much For Your Time & Advice,
Dead Tired

 

[Dead Tired]

Oops,
Real sorry, but the dimensions of the stone from the GIA should read:

6.52 x 6.43 x 4.81

not

6.52 x 5.43 x 4.91

Thanks,
Dead Tired

 

[Garry H (Cut Nut)]

The sarin measurements for the stone size are acheived by a construction method - measuring the angles and joining the dots.
GIA have measured the stone, this is more acccurate.
The table variance results from the same method, and is not super critical.

This is an acceptable variation and I have no reason to suspect foul play